Cheap flights from New Orleans to Illinois from $68

The cheapest month to fly to Illinois from New Orleans is in January. Flight prices, which tend to average around $206, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $227.

The cheapest day to depart from New Orleans to Illinois is on a Friday when prices can be found for as low as $385. Flights from New Orleans to Illinois on a Sunday will generally be more expensive and average around $575. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from New Orleans to Illinois during this time can be as low as $310. Flights at noon are often more expensive with an average ticket price of $542.

Fly from New Orleans Louis Armstrong to Chicago Midway for the best New Orleans Louis Armstrong - Illinois flight prices

You are more likely to see cheaper flights to Illinois from New Orleans when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $293 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from New Orleans for as low as $226 on momondo.

There are 4 cabin classes available to choose from on New Orleans to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, United Airlines, and Southwest are the most popular carriers operating from New Orleans Louis Armstrong to Illinois

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from New Orleans according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 5 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

33 flights are operational daily from New Orleans to Illinois as of August 2026. The most popular departure time for this route is 7:00AM, with 52% of flights per day taking off at noon.

233 flights are operational weekly from New Orleans to Illinois as of August 2026. The most popular departure day for this route is Fri, with 17% of flights per week taking off on this day.